JPH07329028A - Method and apparatus for manufacturing synthetic segment - Google Patents

Method and apparatus for manufacturing synthetic segment

Info

Publication number
JPH07329028A
JPH07329028A JP6152966A JP15296694A JPH07329028A JP H07329028 A JPH07329028 A JP H07329028A JP 6152966 A JP6152966 A JP 6152966A JP 15296694 A JP15296694 A JP 15296694A JP H07329028 A JPH07329028 A JP H07329028A
Authority
JP
Japan
Prior art keywords
segment
steel shell
concrete
manufacturing
stand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6152966A
Other languages
Japanese (ja)
Other versions
JP2888413B2 (en
Inventor
Masayoshi Nakagawa
雅由 中川
Masahiro Yurugi
正弘 万木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kajima Corp
Original Assignee
Kajima Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kajima Corp filed Critical Kajima Corp
Priority to JP6152966A priority Critical patent/JP2888413B2/en
Publication of JPH07329028A publication Critical patent/JPH07329028A/en
Application granted granted Critical
Publication of JP2888413B2 publication Critical patent/JP2888413B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Lining And Supports For Tunnels (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Abstract

PURPOSE:To produce a synthetic segment without performing compaction by placing a steel shell 1 on a segment manufacturing stand in such a state that the opened surface thereof is turned downwardly and intoroducing super-flowable concrete into the steel shell from below under pressure. CONSTITUTION:A steel shell 1 is turned over so that the opened surface thereof is turned downwardly to be placed on a segment manufacturing stand 11. The upper surface of the manufacturing stand 11 is shaped so as to be fitted to the steel shell 1 turned downwardly and super-flowable concrete is introduced into the steel shell 1 under pressure from the pipings 7 branched to the opening parts 8 provided to the upper surface of the stand 11 by a concrete pressure introducing device 5 through a valve 9. Since an air venting hole 3 is provided to the steel shell 1, concrete is smoothly injected. Since the inner surface of a synthetic segment is formed on the upper surface of the manufacturing stand 11, the irregularity of quality is reduced and compaction becomes unnecessary by using super-flowable concrete and cost can be reduced.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、シールド工法に用いら
れる合成セグメントの製造方法および製造装置に関する
ものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a composite segment used in a shield construction method.

【0002】[0002]

【従来の技術】一般に、シールド工法においては、1次
覆工としてセグメントが用いられる。このセグメントの
一つとして、鋼とコンクリートからなる合成セグメント
(SCセグメント: STEEL CONCRETE セグメント)があ
る。この合成セグメントは、以下のようにして製造され
る。図5に示すような鋼殻101にコンクリート103
を打設し、図6に示すように、端部に2次コンクリート
105を打設する。そして、棒状バイブレータ(図示せ
ず)を用いて締固めを行う。あるいは図7に示すよう
に、内型枠107を取り付けたのち、上下を反転させ
て、テーブルバイブレータ上で締固めを行う。そして、
内面をコテ仕上げ、又はハケ仕上げにて仕上げを行う。
2. Description of the Related Art Generally, in a shield construction method, a segment is used as a primary lining. One of these segments is a composite segment consisting of steel and concrete (SC segment: STEEL CONCRETE segment). This synthetic segment is manufactured as follows. Steel shell 101 as shown in FIG.
Then, as shown in FIG. 6, the secondary concrete 105 is placed at the end. Then, compaction is performed using a rod-shaped vibrator (not shown). Alternatively, as shown in FIG. 7, after the inner mold 107 is attached, it is turned upside down and compacted on the table vibrator. And
The inner surface is troweled or brushed.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うにして合成セグメントを製造する場合、合成セグメン
トの内面は高精度が要求され、コテ仕上げ、又はハケ仕
上げとするため、熟練作業員が必要となり、製造時間が
長くなり、ひいてはコスト上昇を招くという問題があっ
た。
However, in the case of manufacturing a composite segment in this way, the inner surface of the composite segment is required to have high accuracy, and since it is a trowel finish or a brush finish, a skilled worker is required, There is a problem that the manufacturing time becomes long and eventually the cost increases.

【0004】また、テーブルバイブレータを用いて締固
めを行う場合、コンクリート打設時の受台の他に、加振
時にも製品寸法を正確に保つための頑丈な内型枠10
7、あるいは側方型枠が必要であった。
When compacting is performed using a table vibrator, in addition to the pedestal for placing concrete, a sturdy inner formwork 10 for accurately maintaining product dimensions during vibration is also provided.
7, or side formwork was required.

【0005】本発明は、このような問題に鑑みてなされ
たもので、その目的とするところは、省力化を図れ、作
業性が良好で、コスト低減を図ることができる合成セグ
メントの製造方法および製造装置を提供することにあ
る。
The present invention has been made in view of the above problems, and an object of the present invention is to provide a method of manufacturing a synthetic segment which can save labor, have good workability, and can reduce costs. To provide a manufacturing apparatus.

【0006】[0006]

【課題を解決するための手段】前述した目的を達成する
ために第1の発明は、1面が開となり、他の5面が鋼製
の鋼殻をセグメント製造台上に前記開となった面を下側
にして載置する工程と、前記セグメント製造台を介し
て、前記鋼殻の下側から前記鋼殻内にコンクリートを圧
入する工程と、を具備することを特徴とする合成セグメ
ントの製造方法である。
[Means for Solving the Problems] In order to achieve the above-mentioned object, the first aspect of the present invention is such that one surface is opened and the other five surfaces are made of steel and the steel shell is opened on the segment manufacturing table. A step of placing the surface downward, and a step of press-fitting concrete into the steel shell from the lower side of the steel shell via the segment manufacturing base, It is a manufacturing method.

【0007】第2の発明は、セグメントを載置する面
と、前記面に設けられた開口部と、前記開口部に至る配
管とを有するセグメント製造台と、前記配管にコンクリ
ートを圧入するコンクリート圧入装置と、を具備するこ
とを特徴とする合成セグメントの製造装置である。
A second aspect of the invention is a segment manufacturing stand having a surface on which a segment is placed, an opening provided in the surface, and a pipe leading to the opening, and a concrete press-fitting for press-fitting concrete into the pipe. And a device for manufacturing a synthetic segment.

【0008】[0008]

【作用】本発明では、1面が開となり、他の5面が鋼製
の鋼殻をセグメント製造台上に開となった面を下側にし
て載置し、セグメント製造台を介して、鋼殻の下側から
鋼殻内にコンクリートを圧入して合成セグメントを製造
する。
According to the present invention, a steel shell having one surface open and the other five surfaces made of steel is placed on the segment manufacturing table with the open surface facing downward, and is placed through the segment manufacturing table. Concrete is pressed into the steel shell from below the steel shell to produce the composite segment.

【0009】[0009]

【実施例】以下、図面に基づいて本発明の実施例を詳細
に説明する。図1は、本発明の1実施例に係る合成セグ
メントの製造方法に用いられる鋼殻1の斜視図である。
この鋼殻1は、上方が開となっており、他の5面が鋼か
らなり、底面にはエア抜き穴3が設けられている。
Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a perspective view of a steel shell 1 used in a method for manufacturing a composite segment according to an embodiment of the present invention.
The steel shell 1 is open at the top, the other five surfaces are made of steel, and the bottom surface is provided with an air vent hole 3.

【0010】図2は、合成セグメントの製造装置の側面
図であり、図3は、その平面図である。5は、コンクリ
ート圧入装置であり、コンクリート圧入装置5に配管7
が接続され、配管7はセグメント製造台11内で分岐さ
れ、配管7の先端はセグメント製造台11の上面の開口
部8に連結される。
FIG. 2 is a side view of the manufacturing apparatus for the synthetic segment, and FIG. 3 is a plan view thereof. 5 is a concrete press-fitting device, and the pipe 7 is attached to the concrete press-fitting device 5.
Are connected, the pipe 7 is branched in the segment manufacturing base 11, and the tip of the pipe 7 is connected to the opening 8 on the upper surface of the segment manufacturing base 11.

【0011】配管7の途中にはバルブ9が設けられる。
セグメント製造台11は、鋼殻1を下向きにしたとき
に、鋼殻1と嵌合するようにその上面が形成される。
A valve 9 is provided in the middle of the pipe 7.
An upper surface of the segment manufacturing table 11 is formed so as to fit with the steel shell 1 when the steel shell 1 is faced down.

【0012】図2、図3に示すように、セグメント製造
台11上に、図1に示す鋼殻1を反転させ、開いている
面を下側にして、鋼殻1をセグメント製造台11上に載
置する。
As shown in FIGS. 2 and 3, the steel shell 1 shown in FIG. 1 is inverted on the segment manufacturing table 11 so that the open surface faces downward and the steel shell 1 is placed on the segment manufacturing table 11. Place on.

【0013】そして、バルブ9を開き、コンクリート圧
入装置5から配管7を介して、超流動コンクリートを鋼
殻1の内部に送り込む。このとき鋼殻3には、エア抜き
穴3が設けられているので、超流動コンクリートを鋼殻
1内にスムーズに注入することができる。
Then, the valve 9 is opened, and the superfluid concrete is fed into the steel shell 1 from the concrete press-fitting device 5 through the pipe 7. At this time, since the steel shell 3 is provided with the air vent hole 3, the superfluid concrete can be smoothly injected into the steel shell 1.

【0014】図4は、本実施例に用いられる超流動コン
クリートの配合を示す図である。図4に示すように、水
セメント比(W/C)は41.4%、細骨材率(s/
a)は44.6%、目標スランプフローは60±5c
m、そして水(W)、早強セメント(C)等の単位量が
図4のとおりとなる。
FIG. 4 is a diagram showing the composition of the superfluid concrete used in this embodiment. As shown in FIG. 4, the water cement ratio (W / C) is 41.4%, and the fine aggregate ratio (s /
a) is 44.6%, target slump flow is 60 ± 5c
The unit amounts of m, water (W), early strength cement (C), etc. are as shown in FIG.

【0015】この超流動コンクリートを用いることによ
って、特に締固めを行わなくても良好なコンクリートを
得ることができる。
By using this superfluid concrete, good concrete can be obtained without any particular compaction.

【0016】このように、本実施例によれば、合成セグ
メントのコンクリート打設作業がシステム化でき、省力
化を図れる。また、合成セグメントの内面は、セグメン
ト製造台11の上面上に形成されるので、品質のバラツ
キが少なくなる。さらに、コンクリートの締固めが不要
となり、内型枠等が不要となり低コスト化を図ることが
できる。
As described above, according to this embodiment, the concrete placing work of the composite segment can be systemized, and the labor can be saved. In addition, since the inner surface of the composite segment is formed on the upper surface of the segment manufacturing table 11, there is less variation in quality. Furthermore, compaction of concrete is not required, and an inner formwork is not required, so that cost can be reduced.

【0017】[0017]

【発明の効果】以上、詳細に説明したように本発明によ
れば、省力化を図れ、作業性が良好で、コスト低減を図
ることができる。
As described above in detail, according to the present invention, labor can be saved, workability can be improved, and cost can be reduced.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本発明の1実施例に係る合成セグメントの鋼
殻の斜視図
FIG. 1 is a perspective view of a steel shell of a composite segment according to an embodiment of the present invention.

【図2】 合成セグメントの製造装置の側面図FIG. 2 is a side view of a synthetic segment manufacturing apparatus.

【図3】 合成セグメントの製造装置の平面図FIG. 3 is a plan view of a synthetic segment manufacturing apparatus.

【図4】 超流動コンクリートの配合例を示す図FIG. 4 is a diagram showing a mixing example of superfluid concrete.

【図5】 従来の合成セグメントの製造方法を示す図FIG. 5 is a diagram showing a conventional method for manufacturing a synthetic segment.

【図6】 従来の合成セグメントの製造方法を示す図FIG. 6 is a diagram showing a conventional method for manufacturing a synthetic segment.

【図7】 従来の合成セグメントの製造方法を示す図FIG. 7 is a diagram showing a conventional method for manufacturing a synthetic segment.

【符号の説明】[Explanation of symbols]

1………鋼殻 3………エア抜き穴 5………コンクリート圧入装置 7………配管 9………バルブ 11………セグメント製造台 1 ………… Steel shell 3 ………… Air vent hole 5 ………… Concrete press fitting device 7 ………… Piping 9 ……… Valve 11 ……… Segment production stand

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 1面が開となり、他の5面が鋼製の鋼殻
をセグメント製造台上に前記開となった面を下側にして
載置する工程と、 前記セグメント製造台を介して、前記鋼殻の下側から前
記鋼殻内にコンクリートを圧入する工程と、 を具備することを特徴とする合成セグメントの製造方
法。
1. A step of placing a steel shell of which one surface is open and the other five surfaces are made of steel on a segment manufacturing table with the open surface facing downward, and through the segment manufacturing table. And press-fitting concrete into the steel shell from the lower side of the steel shell.
【請求項2】 前記コンクリートは超流動コンクリート
であることを特徴とする請求項1記載の合成セグメント
の製造方法。
2. The method of manufacturing a synthetic segment according to claim 1, wherein the concrete is superfluid concrete.
【請求項3】 前記鋼殻はエア抜き穴を有することを特
徴とする請求項1記載の合成セグメントの製造方法。
3. The method of manufacturing a synthetic segment according to claim 1, wherein the steel shell has an air vent hole.
【請求項4】 セグメントを載置する面と、前記面に設
けられた開口部と、前記開口部に至る配管とを有するセ
グメント製造台と、 前記配管にコンクリートを圧入するコンクリート圧入装
置と、 を具備することを特徴とする合成セグメントの製造装
置。
4. A segment manufacturing stand having a surface on which a segment is placed, an opening provided in the surface, and a pipe reaching the opening, and a concrete press-fitting device for press-fitting concrete into the pipe. An apparatus for manufacturing a synthetic segment, comprising:
JP6152966A 1994-06-10 1994-06-10 Method and apparatus for manufacturing composite segment Expired - Fee Related JP2888413B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6152966A JP2888413B2 (en) 1994-06-10 1994-06-10 Method and apparatus for manufacturing composite segment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6152966A JP2888413B2 (en) 1994-06-10 1994-06-10 Method and apparatus for manufacturing composite segment

Publications (2)

Publication Number Publication Date
JPH07329028A true JPH07329028A (en) 1995-12-19
JP2888413B2 JP2888413B2 (en) 1999-05-10

Family

ID=15552056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6152966A Expired - Fee Related JP2888413B2 (en) 1994-06-10 1994-06-10 Method and apparatus for manufacturing composite segment

Country Status (1)

Country Link
JP (1) JP2888413B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006083589A (en) * 2004-09-15 2006-03-30 Ishikawajima Constr Materials Co Ltd Method of manufacturing composite segment, and composite segment
EP2063070A3 (en) * 2007-11-20 2011-03-09 Max Bögl Fertigteilwerke GmbH & Co. KG Formwork and method for manufacturing precise concrete parts and pre-fabricated concrete parts
CN112502048A (en) * 2020-12-08 2021-03-16 云南省建设投资控股集团有限公司 Highway T roof beam hogging moment slip casting exhaust observation pipe
CN118144094A (en) * 2024-02-18 2024-06-07 山东通发实业有限公司 Production process for wind power prefabricated light high-strength concrete segment
JP2025166776A (en) * 2024-04-23 2025-11-06 株式会社鈴木エンタープライズ segment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006083589A (en) * 2004-09-15 2006-03-30 Ishikawajima Constr Materials Co Ltd Method of manufacturing composite segment, and composite segment
EP2063070A3 (en) * 2007-11-20 2011-03-09 Max Bögl Fertigteilwerke GmbH & Co. KG Formwork and method for manufacturing precise concrete parts and pre-fabricated concrete parts
CN112502048A (en) * 2020-12-08 2021-03-16 云南省建设投资控股集团有限公司 Highway T roof beam hogging moment slip casting exhaust observation pipe
CN118144094A (en) * 2024-02-18 2024-06-07 山东通发实业有限公司 Production process for wind power prefabricated light high-strength concrete segment
JP2025166776A (en) * 2024-04-23 2025-11-06 株式会社鈴木エンタープライズ segment

Also Published As

Publication number Publication date
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